Bytes To Gigabytes
Calculator

It converts a raw byte count into gigabytes, and depending on the standard selected, one gigabyte equals either 1,000,000,000 bytes (decimal, SI standard) or 1,073,741,824 bytes (binary, 2^30, sometimes labeled gibibyte or GiB).

Storage manufacturers advertise capacity using decimal gigabytes (1 GB = 1 billion bytes), while most operating systems traditionally display file and drive sizes using binary gigabytes (1 GB = 2^30 bytes). This mismatch is exactly why a '500 GB' drive shows up as roughly 465 GB in your operating system.

Use decimal (1000-based) when working with figures from storage manufacturers, network speeds, or most marketing material, and use binary (1024-based) when trying to match what your computer's file explorer or operating system reports for file and folder sizes.

No — a gigabyte (GB) is 8 times larger than a gigabit (Gb), since there are 8 bits in a byte. This distinction matters most when comparing storage capacity (usually in bytes) to network or internet speeds (usually in bits per second).

The same principle extends upward: a terabyte is 1,000 gigabytes (decimal) or 1,024 gibibytes (binary). If this calculator only outputs gigabytes, divide that result by 1,000 or 1,024 again, matching whichever standard you used, to reach terabytes.